Cosmo
The boy's name Cosmo has been in the national records since 1910, with 2,955 births to its name. In 2025 it ranked 1,932nd. About 1,800 Cosmos are alive in the United States today, and half of them are over 20.
Popularity, 1880–2025
girls named Cosmo boys named Cosmo
By the numbers
- Total US births
- 2,955
- Estimated living today
- 1,800
- Median age today
- 20
- Peak year
- 2022
- Best rank
- 1,706th
- Rank in 2025
- 1,932nd
- First recorded
- 1910
- Girls / boys
- 6 / 2,949
How old the living Cosmos are
born that year still alive today
Of the 2,955 babies given the name since 1910, about 1,800 are alive — 60 in every hundred. Roughly 830 of them are children and 270 are 65 or over. The dotted line is the median: half were born before 2005 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Origin Ancient Greek
Borrowed by Scotland from Italy in the 18th century. An Italian variant of Cosimo, from the name Cosmas of a saint (martyred with his brother Damian in the fourth century), from Ancient Greek κόσμος (“order, ordered universe”).
Etymology from Wiktionary, used under CC BY-SA 4.0.
Notable Cosmos
- Cosmo Jarvis (born 1989)American actor and musician
- Cosmo Gordon Lang (1864–1945)British archbishop and clergyman
- Cosmo Duff-Gordon (1862–1931)Scottish landowner and fencer
People named Cosmo with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Where Cosmo is most common
Relative to how many babies each state records, Cosmo is most concentrated in New York (7.2×), Massachusetts (3.3×), New Jersey (2.1×), California (1.6×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2022
The most popular boys’ names the year Cosmo peaked:
Cosmo elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales boys | Cosmo | 735 | 639th |
| Italy boys | Cosmo | 255 | — |
| France boys | Cosmo | 115 | 1,823rd |
| Switzerland boys | Cosmo | 87 | 713th |
| Scotland boys | Cosmo | 15 | 438th |
| Belgium boys | Cosmo | 14 | 1,108th |
| Ireland boys | Cosmo | 3 | 829th |
| Poland boys | Cosmo | 2 birth registrations | 745th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Cosmo: births by region
| Region | Country | Spelling | Births | Share of the region | Best rank |
|---|---|---|---|---|---|
| German boys | Switzerland | Cosmo | 76 | 0.006% | 580th |
| French boys | Switzerland | Cosmo | 8 | 0.002% | 607th |
| Italian boys | Switzerland | Cosmo | 3 | 0.005% | 199th |
Parts of a country counted above, not extra births. The share is what makes the regions comparable: they differ in size by a factor of three hundred.
By canton, Cosmo is most concentrated in Zurich, where 0.01% of children were given it – 39 of them.
Cosmo: rank by region
In 2023, Cosmo was given 2 times or more in 1 region of Poland.
| Region | Spelling | Place | Children |
|---|---|---|---|
| Śląskie | Cosmo | 258 | 2 |
Each of these is the top of a list the statistics office cut off somewhere – Poland below 2 children – and published nothing after. So a region missing here is one where the name fell outside what was published, not one where it went unused. Places are shared where names tie, and the further down a list a place is, the more names can share it.
Cosmo by city
| City | Years | Births | Best rank |
|---|---|---|---|
| Berlin boys | 2017–2023 | 55 | 234th |
One city over a few years, so these are much smaller numbers than the national ones above and not comparable with them.
Cosmo among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| Finland boys | Cosmo | 49 | 77 |
A count of people on a register – Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Related names
Cosmo against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.